CVE-2021-36754
PowerDNS Authoritative Server Denial of Service
Description
PowerDNS Authoritative Server 4.5.0 before 4.5.1 allows anybody to crash the process by sending a specific query (QTYPE 65535) that causes an out-of-bounds exception.
INFO
Published Date :
July 30, 2021, 2:15 p.m.
Last Modified :
Aug. 7, 2021, 2:28 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2021-36754 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-36754.
| URL | Resource |
|---|---|
| http://www.openwall.com/lists/oss-security/2021/07/26/2 | Mailing List Third Party Advisory |
| https://doc.powerdns.com/authoritative/security-advisories/index.html | Vendor Advisory |
| https://doc.powerdns.com/authoritative/security-advisories/powerdns-advisory-2021-01.html | Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Automatic monitor github cve using Github Actions
Python
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-36754 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-36754 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Aug. 07, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type http://www.openwall.com/lists/oss-security/2021/07/26/2 No Types Assigned http://www.openwall.com/lists/oss-security/2021/07/26/2 Mailing List, Third Party Advisory Changed Reference Type https://doc.powerdns.com/authoritative/security-advisories/index.html No Types Assigned https://doc.powerdns.com/authoritative/security-advisories/index.html Vendor Advisory Changed Reference Type https://doc.powerdns.com/authoritative/security-advisories/powerdns-advisory-2021-01.html No Types Assigned https://doc.powerdns.com/authoritative/security-advisories/powerdns-advisory-2021-01.html Vendor Advisory Added CWE NIST CWE-119 Added CPE Configuration OR *cpe:2.3:a:powerdns:authoritative_server:*:*:*:*:*:*:*:* versions from (including) 4.5.0 up to (excluding) 4.5.1
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-36754 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-36754
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
2.56 }} -0.61%
score
0.90037
percentile